tests/hwloc_insert_misc: more assertions
tests/hwloc_insert_misc: more assertions

To detect spurious failures on AIX because of ENOMEM.

ggouaillardet/hwloc,shekkbuilder/hwloc,shekkbuilder/hwloc,shekkbuilder/hwloc,ggouaillardet/hwloc,ggouaillardet/hwloc,shekkbuilder/hwloc,ggouaillardet/hwloc